FalconX · 9 hours ago
Senior Trading Systems Developer | Low-Latency Java & Rust | Aeron & SBE
NYC Metro Area
Full-time
Onsite
Senior Level
$179K/yr - $226K/yr
5+ years expFalconX is looking for a Pragmatic Low-Latency Architect to bridge the gap between sophisticated TradFi order mechanics and the fragmented world of digital assets. The role involves engineering the Institutional Scaling layer for the global crypto economy by optimizing performance and collaborating with cross-functional teams.
FinanceFinTechCrypto & Web3PaymentsCryptocurrencyFinancial ExchangesTrading Platform
Hiring Manager
Anastasia Candland (Goldberg)
Responsibilities
Architect and optimize "hot path" execution stacks using Aeron and SBE, ensuring deterministic performance and sub-millisecond round-trip times
Design resilient gateways for FIX, WebSocket, and REST APIs, modeling complex order lifecycles into robust state machines that handle the volatility of fragmented global markets
Engineer high-throughput services with a focus on zero-allocation memory management and lock-free programming to eliminate GC jitter in production
Develop sequencer-based architectures and DAG-based calculation engines to ensure fault tolerance and rapid state reconstruction without sacrificing execution speed
Collaborate with Quants and Traders to translate mathematical intent into high-performance infrastructure, owning the full SDLC from greenfield design to production monitoring
Qualification
Required
5+ Years in High-Stakes Environments: Proven track record in designing and building distributed trading systems within HFT firms, top-tier investment banks, or institutional crypto platforms
Domain Expertise: Deep understanding of the Institutional Trade Lifecycle, including order state transitions, risk checks, and internalization engines
Architecture Ownership: You have previously owned the full SDLC for a mission-critical component (OMS/EMS, Market Data Pipeline, or Risk Engine) from greenfield design to production scaling
Core Languages: Expert-level proficiency in Java 11+ or Rust. You should be comfortable discussing GC tuning and memory-safe systems design
Low-Latency Mastery: Hands-on experience building execution systems that operate in the microsecond latency range, with a focus on zero-allocation engineering and lock-free programming
High-Throughput Messaging: Advanced experience with Aeron, Chronicle, or similar messaging frameworks, specifically using SBE (Simple Binary Encoding) for zero-copy data transfer
Connectivity & Protocols: Protocol-level expertise in FIX, WebSocket, and REST APIs, including experience with OpenSSL and handling non-deterministic venue behaviors
Data & Performance: Strong proficiency in designing normalized relational schemas (Postgres/MySQL) and using profiling tools (Flame Graphs, perf, etc.) to identify non-obvious hardware or memory bottlenecks
Preferred
Crypto Native: Prior experience navigating the nuances of digital asset market structures (fragmented liquidity, 24/7/365 uptime)
System Infrastructure: Familiarity with hardware acceleration (FPGAs), thread pinning, or cloud-native performance tuning on AWS/GCP
Leadership: Experience leading Agile teams or mentoring junior engineers in a high-pressure, fast-paced environment
Benefits
Performance linked bonus
Equity
Competitive benefits package
Company
FalconX
FalconX is a digital assets prime brokerage providing trading, financing, and custody services.
201-500 employees
H1B Sponsorship
FalconX has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (10)
2024 (16)
2023 (6)
2022 (6)
2021 (4)
Funding
Current Stage
Late StageTotal Funding
$477MKey Investors
Cantor FitzgeraldB Capital,GICAltimeter Capital,B Capital,Sapphire Ventures,Tiger Global Management
2025-05-27Debt Financing
2022-06-22Series D· $150M
2021-08-10Series C· $210M
Leadership Team
Raghu Yarlagadda
Co-founder & CEO
Austin Reid
Global Head of Revenue & Business
Recent News
Venture Capital Firms
2026-02-12
vcnewsdaily.com
2026-02-12
Company data provided by crunchbase